aboutsummaryrefslogtreecommitdiffstats
path: root/init-sh/level5.sh
blob: cef483102e9fa11d38a3704869aef2248012825f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
#!/bin/bash

#
# Security level implementation...
# Writen by Vandoorselaere Yoann <yoann@mandrakesoft.com>
#

if [ -f /etc/security/msec/init-sh/lib.sh ]; then
    . /etc/security/msec/init-sh/lib.sh
fi

echo -e "Changing attribute of /var/log/* to append only...\n"
chattr +a /var/log/*

# All events logged on tty12
echo "Loging all messages on tty12 : "
AddRules "*.* /dev/tty12" /etc/syslog.conf

# Prevent all kind of connection
echo "Denying all kind of connection : "
AddRules "ALL:ALL:DENY" /etc/hosts.deny

# No login as root
echo "Login as root is denied : "
echo "Modified file : /etc/securetty..."
echo -e "done.\n\n"

# Security check
echo "Updating file check variable : "
echo -e "\t- Check security : yes."
    AddRules "CHECK_SECURITY=yes" /etc/security/msec/security.conf      quiet
echo -e "\t- Check important permissions : yes."
    AddRules "CHECK_PERMS=yes" /etc/security/msec/security.conf         quiet    
echo -e "\t- Check suid root file : yes."
    AddRules "CHECK_SUID_ROOT=yes" /etc/security/msec/security.conf 	quiet
echo -e "\t- Check suid root file integrity (backdoor check) : yes."
    AddRules "CHECK_SUID_MD5=yes" /etc/security/msec/security.conf 	quiet
echo -e "\t- Check suid group file : yes."
    AddRules "CHECK_SUID_GROUP=yes" /etc/security/msec/security.conf	quiet
echo -e "\t- Check world writable file : yes."
    AddRules "CHECK_WRITEABLE=yes" /etc/security/msec/security.conf	quiet
echo -e "\t- Check unowned file : yes."
    AddRules "CHECK_UNOWNED=yes" /etc/security/msec/security.conf	quiet
echo -e "\t- Check promiscuous mode : yes."
    AddRules "CHECK_PROMISC=yes" /etc/security/msec/security.conf       quiet
echo -e "\t- Check listening port : yes."                               
    AddRules "CHECK_OPEN_PORT=yes" /etc/security/msec/security.conf	quiet
echo -e "\t- Check passwd file integrity : yes."
    AddRules "CHECK_PASSWD=yes" /etc/security/msec/security.conf	quiet
echo -e "\t- Check shadow file integrity : yes."
    AddRules "CHECK_SHADOW=yes" /etc/security/msec/security.conf	quiet
echo -e "\t- Security warning on tty : \"yes\" :"
    AddRules "TTY_WARN=yes" /etc/security/msec/security.conf	        quiet
echo -e "\t- Security warning in syslog : \"yes\" :"			
    AddRules "SYSLOG_WARN=yes" /etc/security/msec/security.conf		
# end security check

################ Crontab things ###################
# Check every 1 minutes for promisc problem 
echo "Adding promisc check in crontab (scheduled every minutes) :"
AddRules "*/1 * * * *    root    nice --adjustment=+19 /etc/security/msec/cron-sh/promisc_check.sh" /etc/crontab

echo "Adding \"diff\" security check in crontab (scheduled every midnight) :"
AddRules "0 0 * * *    root    nice --adjustment=+19 /etc/security/msec/cron-sh/diff_check.sh" /etc/crontab

echo "Adding \"global\" security check in crontab (scheduled every midnight) :"
AddRules "0 0 * * *    root    nice --adjustment=+19 /etc/security/msec/cron-sh/security_check.sh" /etc/crontab
###################################################

# Wanna a password ?
LiloUpdate;

echo -n "Running lilo to record new config : "
/sbin/lilo >& /dev/null
echo -e "done.\n"

# Disable all server :
echo "Setting secure level variable to 5 :"
AddRules "SECURE_LEVEL=5" /etc/profile
IFS="
"

export SECURE_LEVEL=5
echo -n "Disabling all service, except : {"
for service in `chkconfig --list | awk '{print $1}'`; do
	if grep -qx ${service} /etc/security/msec/init-sh/server.5; then
		echo -n " ${service}"
	fi
done
echo " } : "

for service in `chkconfig --list | awk '{print $1}'`; do
    chkconfig --del "${service}"
	if ! chkconfig --msec --add "${service}"; then
		echo -e "\t- Services ${service} is now disabled."
	fi
done
echo -e "done.\n";

# /etc/profile
echo "Setting umask to 077 (u=rw) :"
AddRules "umask 077" /etc/profile 
echo "Adding \"normal\" PATH variable :"
AddRules "PATH=\$PATH:/usr/X11R6/bin:/usr/games" /etc/profile quiet
AddRules "export PATH SECURE_LEVEL" /etc/profile

echo
echo "You are now running your system in security level 5,"
echo "All services are disabled : try the chkconfig to enable one..."
echo "If you're on a senssible machine, ( which is probably the case )"
echo "you should compile the server from the sources".
echo
echo "Good luck. :-)"
echo